[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view

REN Routing Table Report cscora at frr.nsrc.org
Wed Feb 9 17:05:29 UTC 2022


IPv4 R&E Routing Table Report   17:05 GMT Wed 09 Feb, 2022

  BGP Table (R&E) as seen at ASREN.

Report Website:     https://bgp.nsrc.org/REN
Detailed Analysis:  https://bgp.nsrc.org/REN/ASREN/

Analysis Summary
----------------

BGP routing table entries examined:                               15274
    Prefixes after maximum aggregation (per Origin AS):            8997
    Deaggregation factor:                                          1.70
    Unique aggregates announced (without unneeded subnets):        9838
    Number of IPv4 prefixes with a valid ROA:                      3316
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                          11958
Total ASes present in the Internet Routing Table:                  2349
    Prefixes per ASN:                                              6.50
Origin-only ASes present in the Internet Routing Table:            2048
Origin ASes announcing only one prefix:                             966
Transit ASes present in the Internet Routing Table:                 301
Transit-only ASes present in the Internet Routing Table:             30
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      14
    Max AS path prepend of ASN (  5474)                              11
Prefixes from unregistered ASNs in the Routing Table:                 4
    Number of instances of unregistered ASNs:                         4
Number of 32-bit ASNs allocated by the RIRs:                      38525
Number of 32-bit ASNs visible in the Routing Table:                 526
Prefixes from 32-bit ASNs in the Routing Table:                    1472
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              1
Number of addresses announced to Internet:                    180631840
    Equivalent to 10 /8s, 196 /16s and 57 /24s
    Percentage of available address space announced:                4.9
    Percentage of allocated address space announced:                4.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:        1729

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                     3703
    Total APNIC prefixes after maximum aggregation:                1983
    APNIC Deaggregation factor:                                    1.87
Prefixes being announced from the APNIC address blocks:            3704
    Unique aggregates announced from the APNIC address blocks:     2186
APNIC Region origin ASes present in the Internet Routing Table:     455
    APNIC Prefixes per ASN:                                        8.14
APNIC Region origin ASes announcing only one prefix:                197
APNIC Region transit ASes present in the Internet Routing Table:     50
Average APNIC Region AS path length visible:                        4.3
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    172
Number of APNIC addresses announced to Internet:               38835264
    Equivalent to 2 /8s, 80 /16s and 148 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-151865
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                      6327
    Total ARIN prefixes after maximum aggregation:                 3782
    ARIN Deaggregation factor:                                     1.67
Prefixes being announced from the ARIN address blocks:             6339
    Unique aggregates announced from the ARIN address blocks:      4207
ARIN Region origin ASes present in the Internet Routing Table:     1008
    ARIN Prefixes per ASN:                                         6.29
ARIN Region origin ASes announcing only one prefix:                 371
ARIN Region transit ASes present in the Internet Routing Table:     118
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     136
Number of ARIN addresses announced to Internet:                79440960
    Equivalent to 4 /8s, 188 /16s and 44 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                      3263
    Total RIPE prefixes after maximum aggregation:                 2598
    RIPE Deaggregation factor:                                     1.26
Prefixes being announced from the RIPE address blocks:             3255
    Unique aggregates announced from the RIPE address blocks:      2653
RIPE Region origin ASes present in the Internet Routing Table:      653
    RIPE Prefixes per ASN:                                         4.98
RIPE Region origin ASes announcing only one prefix:                 313
RIPE Region transit ASes present in the Internet Routing Table:      95
Average RIPE Region AS path length visible:                         3.8
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     132
Number of RIPE addresses announced to Internet:                55979200
    Equivalent to 3 /8s, 86 /16s and 44 /24s
RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-213403
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    1150
    Total LACNIC prefixes after maximum aggregation:                468
    LACNIC Deaggregation factor:                                   2.46
Prefixes being announced from the LACNIC address blocks:           1148
    Unique aggregates announced from the LACNIC address blocks:     560
LACNIC Region origin ASes present in the Internet Routing Table:    152
    LACNIC Prefixes per ASN:                                       7.55
LACNIC Region origin ASes announcing only one prefix:                65
LACNIC Region transit ASes present in the Internet Routing Table:    24
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    62
Number of LACNIC addresses announced to Internet:               3699424
    Equivalent to 0 /8s, 56 /16s and 114 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                    827
    Total AfriNIC prefixes after maximum aggregation:               162
    AfriNIC Deaggregation factor:                                  5.10
Prefixes being announced from the AfriNIC address blocks:           827
    Unique aggregates announced from the AfriNIC address blocks:    231
AfriNIC Region origin ASes present in the Internet Routing Table:    47
    AfriNIC Prefixes per ASN:                                     17.60
AfriNIC Region origin ASes announcing only one prefix:               20
AfriNIC Region transit ASes present in the Internet Routing Table:   10
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                        7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   24
Number of AfriNIC addresses announced to Internet:              2676736
    Equivalent to 0 /8s, 40 /16s and 216 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         577       2157     458  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  1237         186         74     135  KREONET-AS-KR KISTI, KR
 58647         177         18       2  KAGAWAU-AS Kagawa University, JP
  4538         176       4192      72  ERX-CERNET-BKB China Education and Rese
  7575         174        329     121  AARNET-AS-AP Australian Academic and Re
 55824         115         18      12  NKN-CORE-NW NKN Core Network, IN
  2697          53          3      32  ERX-ERNET-AS Education and Research Net
132524          49          9      11  TIFR-AS Tata Institute of Fundamental R
 45773          47          3       5  HECPERN-AS-PK PERN AS Content Servie Pr

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   376         202        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         144        507      86  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
   270         119        329      88  AS270, US
  2920         111         34       6  LACOE, US
 21976          85         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, US
  3477          74         71      43  NOAA-NWAVE, US
 22742          69         53      34  CT-EDU-NET, US

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         279       1950     245  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         183         24       4  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          99       1520      86  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          66        647      61  FR-RENATER Reseau National de telecommu
  2614          58         32      55  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol
  1653          52        167      49  SUNET SUNET Swedish University Network,

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         200        207      42  Rede Nacional de Ensino e Pesquisa, BR
 11340          95         24      54  Red Universitaria Nacional, CL
  1251          65         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
 19611          45         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          43         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
 28571          36         26      15  UNIVERSIDADE DE SAO PAULO, BR
 20191          31         16       1  Pontificia Universidad Catolica de Chil
271640          27          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         351        319      74  TENET-1, ZA
 36914         205         82       3  KENET-AS, KE
  8094          50         48       4  PUKNET, ZA
327687          39         28       3  RENU, UG
327700          34         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          12          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA
 37074          10          7       7  UG-AS, GH
 36982           8         33       8  UCT, ZA

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         577       2157     458  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  2018         351        319      74  TENET-1, ZA
   680         279       1950     245  DFN Verein zur Foerderung eines Deutsch
 36914         205         82       3  KENET-AS, KE
   376         202        178     151  RISQ-AS, CA
  1916         200        207      42  Rede Nacional de Ensino e Pesquisa, BR
  5786         200         16       1  UPRENET, PR
   786         186       1774     183  JANET Jisc Services Limited, GB
  1237         186         74     135  KREONET-AS-KR KISTI, KR

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  7497         432          408  CSTNET-AS-AP Computer Network Information Cente
  2018         351          277  TENET-1, ZA
 36914         205          202  KENET-AS, KE
  5786         200          199  UPRENET, PR
  8895         183          179  ISU Internet Services Unit ISU, SA
 58647         177          175  KAGAWAU-AS Kagawa University, JP
  1916         200          158  Rede Nacional de Ensino e Pesquisa, BR
 18558         136          132  NETBLK-RCOEK, US
  2920         111          105  LACOE, US
  4538         176          104  ERX-CERNET-BKB China Education and Research Net

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
     22226  UNALLOCATED  156.1.0.0/16              2152  CSUNET-NW, US
     19658  UNALLOCATED  199.27.241.0/24          11096  FLORIDANET, US
    395514  UNALLOCATED  205.213.88.0/24           2381  WISCNET1-AS, US

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-spar

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
192.88.99.0/24       Origin:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24      Transit:     20965  GEANT The GEANT IP Service, NL

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:0        /9:1       /10:2       /11:0       /12:9       
/13:16      /14:33      /15:104     /16:1782    /17:341     /18:348     
/19:487     /20:709     /21:781     /22:1226    /23:1305    /24:7946    
/25:72      /26:54      /27:58      /28:0       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 36914         192         205  KENET-AS, KE
  8895         178         183  ISU Internet Services Unit ISU, SA
 23024          53          56  OCDE, US
327700          30          34  MoRENet, MZ
 25977          29          43  HCCS, US
 32440          29          44  LONI, US
200521          29          49  SEAP-AGE, ES
  1916          26         200  Rede Nacional de Ensino e Pesquisa, BR
 31638          21          21  ASN-LEPIDA, IT
  2614          20          58  ROEDUNET, RO

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:2         5:15        8:2        12:1        14:84       23:3      
  24:3        31:4        38:6        40:1        41:118      42:10     
  44:4        45:34       46:6        49:10       58:7        59:8      
  60:4        61:2        62:6        63:3        64:26       66:13     
  67:40       68:1        69:18       71:1        72:10       74:17     
  76:33       77:7        78:3        79:10       80:14       81:27     
  82:2        83:6        84:3        85:30       86:7        87:1      
  88:1        89:10       91:46       92:1        93:11       94:4      
  95:5        96:5       101:4       102:12      103:232     104:7      
 106:1       108:8       109:10      110:3       111:16      112:4      
 114:6       116:5       118:17      119:22      121:27      122:8      
 123:8       124:39      125:1       128:63      129:32      130:90     
 131:83      132:48      133:139     134:88      136:191     137:85     
 138:8       139:4       140:34      141:2       142:41      143:31     
 144:25      145:2       146:125     147:27      148:7       149:13     
 150:20      151:6       152:71      153:6       154:25      155:51     
 156:67      157:26      158:39      159:115     160:25      161:18     
 162:16      163:59      164:25      165:17      166:2       167:16     
 168:97      169:10      170:45      172:2       173:2       175:19     
 176:8       177:12      178:1       179:8       180:16      182:6      
 184:2       185:38      186:3       187:2       188:13      189:5      
 190:42      191:16      192:1262    193:186     194:108     195:57     
 196:152     197:116     198:399     199:210     200:231     201:24     
 202:356     203:285     204:302     205:147     206:158     207:141    
 208:56      209:95      210:178     211:1       212:173     213:5      
 216:56      217:15      218:5       219:11      220:5       222:5      
 223:3      

End of report


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